Panasonic CZ-18BT1U, CU-KE12NK1, CS-KE18NB4UW, CS-KE12NB41 service manual CU-KE18NKU, 230V

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2-1-2.Indoor Unit

CS-KE18NB4UW & CZ-18BT1U

 

 

 

 

 

 

Outdoor Unit

CU-KE18NKU

 

 

 

 

 

 

< 230V >

 

 

 

 

 

 

 

 

 

 

Voltage Rating

 

 

 

 

 

230V Single-Phase 60Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cooling

 

 

Heating

Performance

 

 

 

 

 

 

 

Air Circulation (Hi/Me/Lo)

ft3/min (m3/h)

341(579) / 294(500) / 253(430)

 

383(651) / 324(551) / 265(450)

 

Total Capacity

 

 

 

BTU/h

17,500

( 4,000 to 17,500 )

 

20,400

( 4,400 to 20,400 )

 

 

 

 

 

kW

5.15

( 1.2 to 5.15 )

 

6.0

( 1.3 to 6.0 )

 

Sensible Capacity

 

 

 

BTU/h

 

10,600

 

 

-

 

Latent Capacity

 

 

 

BTU/h

 

6,900

 

 

-

 

 

 

 

 

 

 

 

 

 

 

Moisture Removal (High)

 

Pints/h

 

4.89

 

 

-

 

Available Voltage Range

 

V

 

187 to 253

 

 

Running Amperes

 

 

 

A

8.3

( 1.2 to 8.3 )

 

10.5

( 1.3 to 10.5 )

Rating

Power Input

 

 

 

W

1,860

( 250 to 1,860 )

 

2,340

( 270 to 2,340 )

 

 

 

 

 

 

Power Factor

 

 

%

 

97

 

 

97

Electrical

EER

 

 

 

BTU/h/W

 

9.41

 

 

-

HSPF

 

 

 

BTU/Wh

 

-

 

 

8.5

 

COP

 

 

 

W/W

 

-

 

 

2.56

 

SEER

 

 

 

BTU/Wh

 

16

 

 

-

 

 

 

 

 

 

 

 

 

 

 

 

Compressor Locked Rotor Amperes

 

A

 

17.5

 

 

Fuse or Circuit Breaker Capacity

 

A

 

15

 

 

Controls / Temperature Control

 

 

 

Microprocessor / I.C. Thermister

 

Control Unit

 

 

 

 

 

Wireless Remote Control Unit

 

Timer

 

 

 

 

24-Hour ON or OFF Timer, 1-Hour OFF Timer

 

Fan Speeds

 

Indoor / Outdoor

 

Auto and 3 steps / Auto (Hi, Me, Lo)

 

Airflow Direction (Indoor)

 

Horizontal

 

 

-

 

 

 

 

 

 

Vertical

 

Auto

 

 

Air Filter

 

 

 

 

 

Washable, Anti-Mold

 

Features

Compressor

 

 

 

 

 

DC Twin Rotary (Inverter)

Refrigerant / Amount charged at shipment

 

Ibs (g)

 

R410A / 2.87 (1,300)

 

 

 

 

Refrigerant Control

 

 

 

 

 

Electric Expansion Valve

 

 

 

 

 

 

 

 

 

 

 

 

Operation Sound

 

Indoor : Hi/Me/Lo

 

dB-A

 

44 / 40 / 36

 

 

44 / 40 / 36

 

 

 

Outdoor : Hi

 

dB-A

 

51

 

 

52

 

Refrigerant Tubing Connections

 

 

 

Flare Type

 

 

Max. allowable tubing length at shipment

 

ft (m)

 

25 (7.5)

 

 

Refrigerant

 

Narrow tube

 

inch (mm)

 

1/4 (6.35)

 

 

Tube Diameter

 

Wide tube

 

inch (mm)

 

1/2 (12.7)

 

 

Wired Remote Controller (Option)

 

 

 

CZ-RD515U

 

9

Image 9
Contents 852 361 Outdoor Model No. Product Code NoSafety Precautions Prohibit Table of Contents CZ-RD515U CS-KE12NB41 & CZ-18BT1U + CU-KE12NK1Operating Range Temperature Indoor Air Intake Temp Outdoor Air Intake TempUnit Specifications SpecificationsIndoor Unit CS-KE12NB41 & CZ-18BT1UDimensions & Weight Outdoor Unit Dimensions & Weight Indoor Unit230V CU-KE18NKUCU-KE18NKU 208V CZ-KE18NB4UW & CZ-18BT1U Indoor Unit Major Component SpecificationsIndoor Unit Body CS-KE12NB41 Indoor Unit Panel CZ-18BT1UCB-CS-KE18NB4U Indoor Unit Body CS-KE18NB4UWOutdoor Unit CU-KE12NK1 Outdoor UnitCompressor External FinishOutdoor Unit CU-KE18NKU Indoor Unit CS-KE12NB41 & CZ-18BT1U Other Component SpecificationsIndoor air temp sensor ModelKTEC-35-S98 Outdoor air temp sensorUnit inch mm Dimensional DataUnit inch mm 852-0-0010-12700-0 Unit inch mm 852-0-0010-13200-0 Refrigerant Flow Diagram Refrigerant Flow DiagramOutdoor unit Outdoor unit Temperature Charts Performance DataIndoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 High pressure performance chart Indoor Unit CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE18NKU At wide Pressure Power Supply 115V Single Phase 60Hz Cooling Capacity Cooling CapacityCU-KE12NK1 CS-KE18NB4UW & CZ-18BT1U Power Supply 230V Single Phase 60Hz Cooling CapacityCooling Capacity Low Ambient 740 11,860 800 24.4 Power Supply 115V Single Phase 60Hz Heating Capacity Heating CapacityTH Total Heating Capacity BTU/h Power Supply 230V Single Phase 60Hz Heating Capacity Electrical Data Electrical CharacteristicsCooling HeatingVoltage208V Cooling Voltage230V CoolingCS-KE12NB41 18BT1U8FA2-5250-46900-2 Outdoor Unit CU-KE12NK1 8FA2-5251-12200-2 Controller Address Setting of the Remote Controller MaintenanceHow to Connect How to DisconnectDisassembly Procedure Disconnect the connectors in the control boxRemove the air intake grill Remove the ceiling panel Remove the power box and control box Remove the indoor air temperature sensorScrew Ground cable CN07 CN03 CN09 CN06 Remove the main body lower section Remove the heat exchanger sensor Remove the drain pump and float switchRemove the heat exchanger Remove the turbo fan and fan motorOperation Functions FunctionsEmergency operation Auto cooling/heating operationLamp colors Timer backupProtective Functions Compressor discharge temperature controlOverload prevention during heating Freeze preventionDefrost detection and release CT Peak current cut-off controlReverse-Cycle Defrosting Troubleshooting Before Calling for Service Precautions before Performing Inspection or RepairMethod of Self-Diagnostics Indoor Unit Self-diagnostics LampsChecking the Indoor and Outdoor Units Using the TEST/T-RUN terminalsReplace the controller Replace the circuit board or the fuseOff Blinking Illuminated Serial Communication Error Identification ProcedureBefore the Operation Condition E01From the previous page a Condition E12 Indoor Fan Motor Trouble Diagnosis of Fan MotorOutdoor Fan Motor Noise malfunction Noise Malfunction and Electromagnetic InterferenceElectromagnetic interference Locations most susceptible to noise Trouble CorrectionChecking Electrical Components Power Supply CordMeasurement of Insulation Resistance Measurement of Insulation Resistance for Electrical PartsChecking Continuity of Fuse on PCB Assy Characteristics of New Refrigerant R410A Refrigerant R410A Special Precautions When Servicing UnitWhat is New Refrigerant R410A? CharacteristicsChecklist before Servicing Tools Specifically for R410A Tubing Installation ProceduresCase of Compressor Malfunction Procedure for Replacing CompressorAmount in the charging cylinder is less than 20% Configuration and characteristics of cylindersExample To prevent the compositionCase Refrigerant is Leaking Welding leaking pointsRecharging Charging Additional Refrigerant When Tubes are ExtendedRetro-Fitting Existing Systems Use of Existing Units
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CZ-18BT1U, CS-KE12NB41, CS-KE18NB4UW, CU-KE18NKU, CU-KE12NK1 specifications

The Panasonic CS-KE18NB4UW and CU-KE12NK1, along with the CS-KE12NB41, CZ-18BT1U, and CU-KE18NKU, represent a suite of advanced air conditioning solutions built with cutting-edge technologies designed to provide optimal comfort, energy efficiency, and air quality in various settings.

One of the standout features of this lineup is the inverter technology. Inverter air conditioners adjust the compressor speed to maintain the desired temperature efficiently. This leads to significant energy savings compared to traditional air conditioners, which tend to frequently cycle on and off, consuming more power. By continuously regulating the temperature, the Panasonic units not only save electricity but also prolong the lifespan of the compressor.

Another noteworthy characteristic is the nanoe™ technology integrated into some of these models. Nanoe™ technology uses hydroxyl radicals to purify the air, minimizing harmful bacteria and allergens. This makes the Panasonic units particularly suitable for users with allergies or respiratory issues, providing a cleaner and healthier indoor environment.

In terms of design, these models are sleek and compact, allowing them to fit seamlessly into any room decor, whether in a home, office, or commercial space. The quiet operation is another advantage, making them ideal for bedrooms and study areas where minimal noise is essential.

Furthermore, the CS-KE18NB4UW and CU-KE12NK1 offer a range of powerful cooling and heating capacities, making them versatile solutions for various climate conditions. The cold climate performance ensures consistent heating in colder regions, while the robust cooling capabilities make them perfect for hot summer months.

The user-friendly features include a smart remote control system, allowing users to adjust settings with ease from a distance. Some models are equipped with Wi-Fi capability, enabling integration with smart home systems for enhanced control and programmability.

In conclusion, the Panasonic CS-KE18NB4UW, CU-KE12NK1, CS-KE12NB41, CZ-18BT1U, and CU-KE18NKU air conditioning units exemplify innovation and efficiency. With their inverter technology, air purification features, compact designs, and smart functionalities, they stand out as ideal choices for maintaining comfortable and healthy indoor environments throughout the year.